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How do you do this?????????????

How do you do this?????????????-example-1
User Ronke
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2 Answers

2 votes
a+3b=2b
a+3b-2b=0
a+b=0
a=-b
they are opposite signs

A. 6a + 6b = 0

User Ldrrp
by
7.9k points
4 votes
a + 3b = 2b
Subtract 3b from both sides:
a = -b
Now substitute the "a" value:
6(-b) + 6b =
-6b +6b = 0
(a)
User Viv
by
7.5k points

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